Abstract: South and Southwest Yunnan are the most abundant in bamboo resources in China.They and their neighbouring areas formed a diversity center of Bambusoideae in the world.There are 16 genera and 56 species (including varieties) in Dehong,among them,21 species are endemic to China (15 species endemic to Yunnan),and accounted for 4667% of the total species (45 species).Most of the species belong to the arealtype of tropical Asia.The flora of Bambusoideae in Dehong is very closely related to that of tropical Area especially of Myanmar (18 species common to Myanmar and Dehong) and those of South and Southeast Yunnan.

Key words: Dehong